20 votes 20 votes One of the header fields in an IP datagram is the Time-to-Live (TTL) field. Which of the following statements best explains the need for this field? It can be used to prioritize packets. It can be used to reduce delays. It can be used to optimize throughput. It can be used to prevent packet looping. Computer Networks gatecse-2010 computer-networks ip-packet easy + – go_editor asked Sep 29, 2014 • edited Apr 21, 2018 by Tesla! go_editor 9.8k views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply meghna commented May 27, 2018 reply Follow Share is there any other network layer protocol which best suits any of the a,b,c options??? 0 votes 0 votes minal commented Dec 24, 2018 reply Follow Share protocol field prioritize packets. 0 votes 0 votes Please log in or register to add a comment.
Best answer 32 votes 32 votes Answer is (D). It can be used to prevent packet looping. Sankaranarayanan P.N answered Nov 16, 2014 • edited Oct 23, 2018 by Krithiga2101 Sankaranarayanan P.N comment Share Follow See all 0 reply Please log in or register to add a comment.
4 votes 4 votes D . This option best describes TTL field SourabhSethi16 answered Aug 10, 2016 SourabhSethi16 comment Share Follow See all 0 reply Please log in or register to add a comment.
2 votes 2 votes It prevent infinite looping over network .Bcz each router decrease its value by one and when this(TTL) value become zero ,then it is discarder by router silently. Paras Nath answered Sep 10, 2016 • edited Dec 28, 2016 by Paras Nath Paras Nath comment Share Follow See all 0 reply Please log in or register to add a comment.
2 votes 2 votes 1. TTL decreases by one each time the packet is forwarded by a router. 2. If TTL reaches zero, the packet is discarded. 3. This eliminates packets trapped in routing loops. Option D pankaj_vir answered Apr 6, 2018 pankaj_vir comment Share Follow See all 0 reply Please log in or register to add a comment.